The AirTAC Airtac SC40 Standard Cylinder SC40X25SN is a genuine double-acting standard air cylinder with a Ø40mm bore and 25mm stroke, PT1/4 air ports and adjustable end cushioning. It is used for push, pull, lift and clamp motion in industrial automation.
The SC40X25SN is a compact-stroke double-acting cylinder delivering 628 N of push force at 0.5 MPa (1130 N at 0.9 MPa). Its 16 mm diameter piston rod and 21 mm adjustable air cushion provide reliable deceleration even in rapid short-stroke cycles.
This model includes a built-in magnet for direct mounting of CMSG/DMSG/EMSG sensors, enabling precise end-of-stroke detection. NBR seals are fitted as standard, making it a practical choice for general industrial environments within the -20 to +70 °C range.
| Model | Airtac SC40 Standard Cylinder SC40X25SN |
|---|---|
| Series | SC standard tie-rod cylinder |
| Bore size | Ø40 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod thread | M12×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SC series datasheet. Operating pressure 0.15–1.0 MPa, proof pressure 1.5 MPa, temperature −20 to +70 °C. Confirm against the product label before installation. Thread options: PT (standard) / G.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (approx.) | 128 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SC | Standard tie-rod cylinder series. |
|---|---|
| 40 | Bore size in mm. |
| ×25 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related variants: SCD (double rod), SCJ (adjustable stroke), SCT (multi-position). Seals: TPU standard / H = Viton / N = NBR. Thread: blank = PT, G = G thread.
The integrated magnet allows direct mounting of reed or solid-state sensors for cycle counting and position verification in automated assembly.
Provides 628 N of clamping force at 0.5 MPa, ideal for holding small parts during machining or bonding operations.
Quickly ejects lightweight parts from a conveyor line, with the NBR seals handling standard shop air conditions.
For a 40 mm bore, this 25 mm stroke is a standard option and is well within the 1200 mm maximum. The SC40X25SN suits applications needing modest force in a compact envelope. If your load requires more thrust, stepping up to the 50 mm bore provides 982 N at 0.5 MPa. For side loads or guided motion, pair this cylinder with an external linear guide.
To ensure a correct replacement, match five points: 40 mm bore, 25 mm stroke, PT port thread, the -S magnet option for sensor compatibility, and NBR seal material. This combination ensures drop-in interchangeability with an existing AirTAC SC tie-rod unit.
Quick checklist
At 0.5 MPa, it generates 628 N extending and 528 N retracting. At the maximum operating pressure of 0.9 MPa, the push force reaches 1130 N.
Yes, the -S suffix indicates a built-in magnet. You can mount AirTAC CMSG, DMSG, or EMSG sensors directly onto the tie-rod barrel for contactless position sensing.
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